A pregnane ester and its glycoside from Orthenthera viminea
作者:Kanwal J. Kaur、Maheshwari P. Khare、Anakshi Khare
DOI:10.1016/0031-9422(85)80045-5
日期:1985.11
Abstract A new pregnaneester named ornogenin and its diglycoside designated as ornine were isolated from the dried twigs of Orthenthera viminea . On the basis of chemical and spectroscopic evidence, their structures were established as 12,20-di- O -cinnamoyl-sarcostin and 12,20-di- O -cinnamoyl-sarcostin-3- O -α- L -oleandropyranosyl(1 → 4)- O -β- D -cymaropyranoside, respectively.
作者:Kamal N. Tiwari、Anakshi Khare、Maheshwari P. Khare
DOI:10.1016/0008-6215(83)88479-1
日期:1983.11
Abstract A new tetrasaccharide, orthenthose, has been isolated from the dried twigs of Orthenthera viminea (Family: Asclepiadaceae). By spectral and chemical procedures, this new tetrasaccharide has been shown to be O -α- l -oleandropyranosyl-(1→4)- O -α- l -oleandropyranosyl-(1→4)- O -α- l -oleandropyranosyl-(1→4)-β- l -oleandropyrano se.